JP5477760B2 - Keyboard instrument case structure - Google Patents

Keyboard instrument case structure Download PDF

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JP5477760B2
JP5477760B2 JP2008211829A JP2008211829A JP5477760B2 JP 5477760 B2 JP5477760 B2 JP 5477760B2 JP 2008211829 A JP2008211829 A JP 2008211829A JP 2008211829 A JP2008211829 A JP 2008211829A JP 5477760 B2 JP5477760 B2 JP 5477760B2
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keyboard
case
upper case
mounting member
mounting
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JP2010048947A (en
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和則 三角
和夫 島田
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Casio Computer Co Ltd
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Description

この発明は、電子ピアノなどの鍵盤楽器のケース構造に関する。   The present invention relates to a case structure of a keyboard instrument such as an electronic piano.

従来、鍵盤楽器のケース構造においては、特許文献1に記載されているように、上部ケースと、前側下ケースと、後側下ケースとの3つに分割され、下側に位置する前側下ケースと後側下ケースとを中間連結部で接合し、この前側下ケースに鍵盤を取り付けると共に、上部ケースに各種のスイッチおよびスピーカを取り付け、この状態で前側下ケースと後側下ケースとの両者の上側に上部ケースを取り付けるように構成されたものが知られている。
特開2006−178354
Conventionally, in the case structure of a keyboard instrument, as described in Patent Document 1, the front lower case is divided into three parts, that is, an upper case, a front lower case, and a rear lower case, and located on the lower side. And the rear lower case are joined by an intermediate connecting part, a keyboard is attached to the front lower case, and various switches and speakers are attached to the upper case. In this state, both the front lower case and the rear lower case are attached. What was comprised so that an upper case might be attached to the upper side is known.
JP 2006-178354 A

このような鍵盤楽器のケース構造では、前側下ケースと後側下ケースとの両者の上側に上部ケースを取り付ける前に、前側下ケースに設けられた鍵盤の回路基板に接続されたフラットケーブルと、上部ケースに設けられた各種のスイッチやスピーカなどの各種配線とを、後側下ケース内に導いて電気的に接続し、この状態で前側下ケースと後側下ケースとの両者の上側に上部ケースを取り付けなければならない。   In such a keyboard instrument case structure, before attaching the upper case on both the front lower case and the rear lower case, the flat cable connected to the circuit board of the keyboard provided on the front lower case, Various wirings such as various switches and speakers provided in the upper case are led into the rear lower case and electrically connected, and in this state, the upper part is located above both the front lower case and the rear lower case. A case must be attached.

このため、このような鍵盤楽器のケース構造においては、前側下ケースに設けられた鍵盤の回路基板に接続されたフラットケーブルと、上部ケースに設けられた各種のスイッチやスピーカなどの各種配線とを、後側下ケース内において電気的に接続する際、後側下ケースと上部ケースとが分離されて離れているため、各種配線の長さに余裕をもたせて各配線を長くする必要がある。このため、前側下ケースと後側下ケースとの両者の上側に上部ケースを取り付けたときに、各種配線の長さに余りができ、その余った各種配線の後処理が必要となるため、組立て作業が煩雑で面倒であるという問題がある。   For this reason, in the case structure of such a keyboard instrument, a flat cable connected to the circuit board of the keyboard provided in the front lower case and various wirings such as various switches and speakers provided in the upper case are provided. When the electrical connection is made in the rear lower case, the rear lower case and the upper case are separated and separated from each other. Therefore, it is necessary to make the lengths of the various wirings long enough. For this reason, when the upper case is attached to the upper side of both the front lower case and the rear lower case, there is a surplus in the length of various wirings, and post-processing of the surplus various wirings is required. There is a problem that the work is complicated and troublesome.

この発明が解決しようとする課題は、各種配線の長さを最小限に短くできると共に、配線作業が容易で、組立て作業性が良い鍵盤楽器のケース構造を提供することである。   The problem to be solved by the present invention is to provide a keyboard instrument case structure in which the length of various wirings can be reduced to a minimum, wiring work is easy, and assembly workability is good.

この発明は、上記課題を解決するために、次のような構成要素を備えている。
請求項1に記載の発明は、 鍵盤を上方に露出させる鍵盤開口部が前側に設けられ、その後側中間部分の上面に各種のスイッチが設けられ、且つ後側両側部の内面にスピーカが設けられる上部ケースと、前記鍵盤が前側に設けられて前記上部ケースの下部に取り付けられる下部ケースとを備えた鍵盤楽器のケース構造において、
前記下部ケースは、前記上部ケースの前側下部に取り付けられて前記鍵盤を搭載する鍵盤搭載部材と、この鍵盤搭載部材の後端両側部および前記上部ケースの後側両側部の下部にそれぞれ取り付けられる第1、第2の各ボックス部材と、前記上部ケースの後側中間部分の下部に位置決めされて前記鍵盤搭載部材の後端中間部および前記第1、第2の各ボックス部材の互いに対向する各側部に取り付けられる底蓋部材とを備え、前記第1、第2の各ボックス部材は、前記鍵盤搭載部材の後端両側部に設けられた第1取付部にそれぞれ溶着によって締結される第1締結部と、前記上部ケースの後側両側部に設けられた第2取付部にそれぞれねじ部材によって締結される第2締結部とを備えていることを特徴とする鍵盤楽器のケース構造である。
In order to solve the above problems, the present invention includes the following components.
According to the first aspect of the present invention, a keyboard opening for exposing the keyboard upward is provided on the front side, various switches are provided on the upper surface of the rear intermediate portion, and speakers are provided on the inner surfaces of the rear side portions. In a case structure of a keyboard instrument comprising an upper case and a lower case attached to the lower part of the upper case with the keyboard provided on the front side,
The lower case is attached to a front lower portion of the upper case and mounted on the keyboard mounting member for mounting the keyboard, and on both sides of a rear end of the keyboard mounting member and lower portions of both sides of the rear side of the upper case. 1. Each of the second box members and the opposite sides of the keyboard mounting member and the first and second box members positioned at the lower portion of the rear intermediate portion of the upper case and the keyboard mounting member. A first lid that is fastened by welding to first mounting portions provided on both sides of the rear end of the keyboard mounting member. And a second fastening portion fastened by a screw member to each of the second mounting portions provided on both side portions of the rear side of the upper case .

請求項に記載の発明は、前記底蓋部材が、前記上部ケースの後端中間部に設けられた位置決め部に位置決めされるフック部と、前記鍵盤搭載部材の後端中間部に設けられた第3取付部にねじ部材によって締結される第3締結部と、前記第1、第2の各ボックス部材の互いに対向する各側面に設けられた第4取付部にねじ部材によって締結される第4締結部とを備えていることを特徴とする請求項1に記載の鍵盤楽器のケース構造である。 According to a second aspect of the present invention, the bottom cover member is provided at a hook portion that is positioned at a positioning portion provided at a rear end intermediate portion of the upper case, and at a rear end intermediate portion of the keyboard mounting member. A fourth fastening portion fastened by a screw member to a third fastening portion fastened to the third attachment portion by a screw member and a fourth attachment portion provided on each side surface of the first and second box members facing each other. The keyboard instrument case structure according to claim 1 , further comprising a fastening portion.

この発明によれば、下部ケースの鍵盤搭載部材に鍵盤を搭載すると共に、上部ケースに各種のスイッチおよびスピーカを搭載し、この鍵盤搭載部材を上部ケースの下部に取り付けた状態で、各種の配線を接続することができるので、配線作業が容易で、各種配線の長さを最小限の短くすることができる。また、この状態で、底蓋部材を上部ケースに位置決めして鍵盤搭載部材およびこれに取り付けられた第1、第2の各ボックス部材に取り付けることができる。このため、下部ケースを4つに分割しても、ケース全体を強固に組み付けることができると共に、配線作業が容易で、組立て作業の大幅な向上を図ることができる。   According to the present invention, the keyboard is mounted on the keyboard mounting member of the lower case, and various switches and speakers are mounted on the upper case, and various wirings are made with the keyboard mounting member attached to the lower portion of the upper case. Since they can be connected, wiring work is easy and the length of various wirings can be minimized. Further, in this state, the bottom cover member can be positioned on the upper case and attached to the keyboard mounting member and the first and second box members attached thereto. For this reason, even if the lower case is divided into four, the entire case can be firmly assembled, wiring work is easy, and assembly work can be greatly improved.

以下、図1〜図14を参照して、この発明を適用した鍵盤楽器のケース構造の一実施形態について説明する。
この鍵盤楽器は、図1および図2に示すように、楽器ケース1を備えている。この楽器ケース1は、全体が横長のほぼ箱状に形成されている。この楽器ケース1の前側(図1では下側)の内部には、鍵盤2が上方に露出して設けられている。
An embodiment of a keyboard instrument case structure to which the present invention is applied will be described below with reference to FIGS.
The keyboard instrument includes a musical instrument case 1 as shown in FIGS. The musical instrument case 1 is formed in a substantially box shape that is horizontally long. Inside the instrument case 1 (on the lower side in FIG. 1), a keyboard 2 is provided so as to be exposed upward.

この場合、鍵盤2は、図1に示すように、白鍵および黒鍵からなる鍵2aが多数配列され、これら各鍵2aが押鍵操作によってそれぞれ上下方向(図1では紙面の表裏方向)に回動し、その下側に配置された回路基板(図示せず)の鍵スイッチをオン・オフさせるように構成されている。また、この楽器ケース1の鍵盤2の後側に位置する上面の中間部分には、図1に示すように、各種のスイッチ3が設けられており、更にこの楽器ケース1の鍵盤2の後側に位置する両側部の内部には、それぞれスピーカ4が設けられている。 In this case, as shown in FIG. 1, the keyboard 2 has a large number of keys 2a each composed of a white key and a black key. It is configured to turn and turn on / off a key switch of a circuit board (not shown) disposed on the lower side thereof. Further, as shown in FIG. 1, various switches 3 are provided in an intermediate portion of the upper surface located on the rear side of the keyboard 2 of the instrument case 1, and the rear side of the keyboard 2 of the instrument case 1. Speakers 4 are respectively provided inside the both side portions located at.

この楽器ケース1は、図1および図2に示すように、上部ケース5と下部ケース6とで構成されている。上部ケース5は、図1および図3に示すように、鍵盤2の後方(図3では下側)に位置する横長の本体部5aと、この本体部5aの両側から鍵盤2の両側部に沿って前側(図3では上側)に延びた縁部5bとを備え、本体部5aの前側に延びた両側の縁部5b間に鍵盤2を上方に露出させるための鍵盤開口部5cが設けられた構成になっている。 As shown in FIGS. 1 and 2, the musical instrument case 1 includes an upper case 5 and a lower case 6. As shown in FIGS. 1 and 3, the upper case 5 has a horizontally long main body 5a located behind the keyboard 2 (lower side in FIG. 3) and along both sides of the keyboard 2 from both sides of the main body 5a. And an edge portion 5b extending to the front side (upper side in FIG. 3), and a keyboard opening 5c for exposing the keyboard 2 upward is provided between both edge portions 5b extending to the front side of the main body portion 5a. It is configured.

この上部ケース5の本体部5aにおける上面の中間部分は、図1に示すように、各種のスイッチ3が設けられている。また、この上部ケース5の本体部5aにおける内面の中間部分は、図3に示すように、回路基板7および補助回路基板8が設けられている。更に、この上部ケース5の本体部5aにおける内面の両側部には、それぞれスピーカ4が設けられている。 As shown in FIG. 1, various switches 3 are provided in the middle portion of the upper surface of the main body 5 a of the upper case 5. Further, as shown in FIG. 3, a circuit board 7 and an auxiliary circuit board 8 are provided at an intermediate portion of the inner surface of the main body 5a of the upper case 5. Further, speakers 4 are provided on both sides of the inner surface of the main body 5a of the upper case 5, respectively.

この場合、回路基板7と補助回路基板8とは、互いに電気的に接続されている。そして、回路基板7には、図3に示すように、各種のスイッチ3が電気的に接続されていると共に、フラットケーブル9の一端部が接続されている。また、補助回路基板8には、両側のスピーカ4がそれぞれ接続線11によって電気的に接続されていると共に、接続用の配線12の一端部が接続されている。 In this case, the circuit board 7 and the auxiliary circuit board 8 are electrically connected to each other. As shown in FIG. 3, various switches 3 are electrically connected to the circuit board 7, and one end of the flat cable 9 is connected to the circuit board 7. In addition, the auxiliary circuit board 8 is electrically connected to the speakers 4 on both sides by connection lines 11, and is connected to one end of a connection wiring 12.

一方、下部ケース6は、図4〜図7に示すように、上部ケース5の前側下部に取り付けられて鍵盤2を搭載する鍵盤搭載部材15と、この鍵盤搭載部材15の後端両側部および上部ケース5の後側両側部の下部にそれぞれ取り付けられる第1、第2の各ボックス部材16、17と、上部ケース5の後側中間部分の下部に位置決めされて鍵盤搭載部材15の後端中間部および第1、第2の各ボックス部材16、17の互いに対向する各側部に取り付けられる底蓋部材18とを備えている。 On the other hand, as shown in FIGS. 4 to 7, the lower case 6 is attached to the front lower portion of the upper case 5 to mount the keyboard 2, the both sides of the rear end of the keyboard mounting member 15 and the upper portion. First and second box members 16 and 17 attached to lower portions of both side portions of the rear side of the case 5, and a rear end intermediate portion of the keyboard mounting member 15 positioned under the rear intermediate portion of the upper case 5 And a bottom cover member 18 attached to each side of the first and second box members 16 and 17 facing each other.

鍵盤搭載部材15は、図4〜図7に示すように、上部ケース5の鍵盤開口部5cおよびその両側の縁部5bに対応する横長のほぼ箱状に形成され、その上面側に鍵盤2が取り付けられ、この状態で上部ケース5の前側下部に取り付けられて、鍵盤2が上部ケース5の鍵盤開口部5cから上方に露出するように構成されている。この場合、鍵盤搭載部材15の両側部には、複数の第1締結部20が設けられている。この第1締結部20は、図10〜図13に示すように、下部側が広く、上部側が狭くなるほぼ角筒状に形成され、その上端部にねじ挿入孔20aが設けられた構成になっている。 4 to 7, the keyboard mounting member 15 is formed in a horizontally long substantially box shape corresponding to the keyboard opening 5c of the upper case 5 and the edges 5b on both sides thereof, and the keyboard 2 is formed on the upper surface thereof. In this state, it is attached to the front lower portion of the upper case 5 so that the keyboard 2 is exposed upward from the keyboard opening 5c of the upper case 5. In this case, a plurality of first fastening portions 20 are provided on both sides of the keyboard mounting member 15. As shown in FIGS. 10 to 13, the first fastening portion 20 is formed in a substantially rectangular tube shape having a wide lower side and a narrow upper side, and has a configuration in which a screw insertion hole 20 a is provided at an upper end portion thereof. Yes.

これにより、この鍵盤搭載部材15は、図10〜図13に示すように、複数の第1締結部20が上部ケース5の内面に設けられた複数の第1取付ボス部19に対応し、この状態で締結ねじ21が第1締結部20内に下側から挿入されて、第1締結部20の各ねじ挿入孔20aを通して上部ケース5の第1取付ボス部5aに螺入することにより、上部ケース5の下部に取り付けられるように構成されている。 Thereby, as shown in FIGS. 10 to 13, the keyboard mounting member 15 corresponds to the plurality of first mounting boss portions 19 in which the plurality of first fastening portions 20 are provided on the inner surface of the upper case 5. In this state, the fastening screw 21 is inserted into the first fastening portion 20 from below, and is screwed into the first mounting boss portion 5a of the upper case 5 through the screw insertion holes 20a of the first fastening portion 20. It is configured to be attached to the lower part of the case 5.

第1、第2の各ボックス部材16、17は、図7および図8に示すように、鍵盤搭載部材15の後端部に設けられた第2取付部22にそれぞれ溶着によって締結される第2締結部23と、図11に示すように、上部ケース5の後側両側部に設けられた複数の第3取付ボス部24にそれぞれ締結ねじ25によって締結される第3締結部26とを備えている。 As shown in FIGS. 7 and 8, the first and second box members 16 and 17 are second fastened to the second mounting portion 22 provided at the rear end portion of the keyboard mounting member 15 by welding. As shown in FIG. 11, the fastening portion 23 includes a third fastening portion 26 fastened to the plurality of third mounting boss portions 24 provided on both sides of the rear side of the upper case 5 by fastening screws 25. Yes.

すなわち、第1、第2の各ボックス部材16、17の各第2締結部23は、図7、図8、図10および図11に示すように、各ボックス部材16、17の前側内部に起立して設けられた3本の樹脂突起23aを備えている。この場合、鍵盤搭載部材15の第2取付部22は、図7、図8、図10および図11に示すように、鍵盤搭載部材15の後端部における両側に取付片22aが後方に突出して設けられ、この取付片22aに複数の取付孔22bが設けられた構成になっている。 That is, each second fastening portion 23 of each of the first and second box members 16 and 17 stands up inside the front side of each box member 16 and 17 as shown in FIGS. 7, 8, 10 and 11. Provided with three resin protrusions 23a. In this case, as shown in FIGS. 7, 8, 10 and 11, the second mounting portion 22 of the keyboard mounting member 15 has mounting pieces 22a protruding rearward on both sides at the rear end portion of the keyboard mounting member 15. The mounting piece 22a is provided with a plurality of mounting holes 22b.

これにより、第1、第2の各ボックス部材16、17のうち、第1ボックス部材16は、図10および図11に示すように、各第2締結部23の3本の樹脂突起23aが鍵盤搭載部材15の第2取付部22の各取付孔22bに下側からそれぞれ挿入して上方に突出し、この突出した部分を溶融させて第2取付部22の取付片22aに溶着することにより、鍵盤搭載部材15の後端部に固着されるように構成されている。第2ボックス部材17も、第1ボックス部材16と同様、鍵盤搭載部材15の後端部に固着されるように構成されている。 As a result, of the first and second box members 16, 17, the first box member 16 has three resin protrusions 23a of the second fastening portions 23 as shown in FIGS. 10 and 11. By inserting each mounting hole 22b of the second mounting portion 22 of the mounting member 15 from below and projecting upward, the projecting portion is melted and welded to the mounting piece 22a of the second mounting portion 22. It is configured to be fixed to the rear end portion of the mounting member 15. Similarly to the first box member 16, the second box member 17 is also configured to be fixed to the rear end portion of the keyboard mounting member 15.

また、第1、第2の各ボックス部材16、17の第3締結部26は、図10および図11に示すように、鍵盤搭載部材15の第1締結部20と同様、下部側が広く、上部側が狭くなるほぼ角筒状に形成され、その上端部にねじ挿入孔26aが設けられた構成になっている。これにより、第1、第2の各ボックス部材16、17は、図11に示すように、第3締結部26が上部ケース5の内面に設けられた複数の第3取付ボス部24に対応し、この状態で締結ねじ25が第3締結部26内に下側から挿入されて、第3締結部26のねじ挿入孔26aを通して上部ケース5の第3取付ボス部24に螺入することにより、上部ケース5の下部に取り付けられるように構成されている。   Further, as shown in FIGS. 10 and 11, the third fastening portion 26 of each of the first and second box members 16 and 17 has a wide lower portion and a top portion, like the first fastening portion 20 of the keyboard mounting member 15. It is formed in a substantially rectangular tube shape with a narrow side, and has a configuration in which a screw insertion hole 26a is provided at the upper end portion thereof. As a result, the first and second box members 16 and 17 correspond to the plurality of third mounting boss portions 24 in which the third fastening portion 26 is provided on the inner surface of the upper case 5 as shown in FIG. In this state, the fastening screw 25 is inserted into the third fastening portion 26 from below and screwed into the third mounting boss portion 24 of the upper case 5 through the screw insertion hole 26a of the third fastening portion 26. It is configured to be attached to the lower part of the upper case 5.

底蓋部材18は、図7、図8、図12および図13に示すように、上部ケース5の後端下部に設けられた位置決め部27に位置決めされるフック部28と、鍵盤搭載部材15の後端下部に設けられた第4取付部30に締結ねじ31によって締結される第4締結部32と、第1、第2の各ボックス部材16、17の互いに対向する各側面にそれぞれ設けられた第5取付部33に締結ねじ34によって締結される第5締結部35とを備えている。 As shown in FIGS. 7, 8, 12, and 13, the bottom cover member 18 includes a hook portion 28 that is positioned by a positioning portion 27 provided at the lower rear end of the upper case 5, and the keyboard mounting member 15. A fourth fastening portion 32 fastened by a fastening screw 31 to a fourth mounting portion 30 provided at the lower end of the rear end and provided on each side surface of the first and second box members 16 and 17 facing each other. A fifth fastening portion 35 fastened to the fifth mounting portion 33 by a fastening screw 34 is provided.

この場合、上部ケース5の位置決め部27は、図12に示すように、上部ケース5の後端部の内面下部に設けられた係止凹部である。底蓋部材18のフック部28は、図7および図8に示すように、底蓋部材18の後端部から上側に向けて突出すると共に、その両側に切込み部28aが設けられ、これにより断面L字状に形成され、前後方向(図7では左右方向)に弾性変形するように構成されている。 In this case, the positioning portion 27 of the upper case 5 is a locking recess provided in the lower part of the inner surface of the rear end portion of the upper case 5 as shown in FIG. As shown in FIGS. 7 and 8, the hook portion 28 of the bottom lid member 18 protrudes upward from the rear end portion of the bottom lid member 18 and is provided with cut portions 28a on both sides thereof. It is formed in an L shape and is configured to elastically deform in the front-rear direction (left-right direction in FIG. 7).

これにより、底蓋部材18は、図12および図13に示すように、この底蓋部材18を上部ケース5の下部に取り付ける際に、フック部28の先端部を上部ケース5の位置決め部27に係脱可能に係止させることにより、底蓋部材18の後端部が上部ケース5に対して位置決めされると共に、底蓋部材18の前端部を鍵盤搭載部材15の後端部に対して位置規制するように構成されている。 Thereby, as shown in FIGS. 12 and 13, when the bottom lid member 18 is attached to the lower portion of the upper case 5, the tip end portion of the hook portion 28 is moved to the positioning portion 27 of the upper case 5. By engaging and disengaging, the rear end portion of the bottom cover member 18 is positioned with respect to the upper case 5 and the front end portion of the bottom cover member 18 is positioned with respect to the rear end portion of the keyboard mounting member 15. It is configured to regulate.

また、底蓋部材18の第4締結部32は、図7、図8および図12に示すように、底蓋部材18の前端部から下側に向けてL字状に折り曲げられた取付片32aにねじ挿入孔32bが鍵盤搭載部材15の第4取付部30に対応して設けられた構成になっている。この場合、鍵盤搭載部材15の第4取付部30は、図7、図8および図12に示すように、鍵盤搭載部材15の後端部から後方(図12では右側)に向けて突出した取付片30aにねじ挿入孔30bが設けられ、この取付片30aの上面にねじ孔を有するボス部30cがねじ挿入孔30bに対応して設けられた構成になっている。 Moreover, the 4th fastening part 32 of the bottom cover member 18 is attached to the attachment piece 32a bent in L shape toward the lower side from the front-end part of the bottom cover member 18, as shown in FIG.7, FIG8 and FIG.12. The screw insertion hole 32b is provided corresponding to the fourth mounting portion 30 of the keyboard mounting member 15. In this case, as shown in FIGS. 7, 8, and 12, the fourth mounting portion 30 of the keyboard mounting member 15 is mounted so as to protrude rearward (right side in FIG. 12) from the rear end portion of the keyboard mounting member 15. A screw insertion hole 30b is provided in the piece 30a, and a boss portion 30c having a screw hole is provided on the upper surface of the mounting piece 30a corresponding to the screw insertion hole 30b.

これにより、第4締結部32は、図12に示すように、鍵盤搭載部材15の第4取付部30における取付片30aの下側に第4締結部32の取付片32aを配置して、この取付片32aのねじ挿入孔32bを鍵盤搭載部材15の第4取付部30の各ねじ挿入孔30bに対応させ、この状態で締結ねじ31を第4締結部32の下側から鍵盤搭載部材15の第4取付部30におけるボス部30c内のねじ孔に螺入させて締め付けることにより、底蓋部材18の前端部を鍵盤搭載部材15の後端部に固定するように構成されている。 Thereby, as shown in FIG. 12, the 4th fastening part 32 arrange | positions the attachment piece 32a of the 4th fastening part 32 on the lower side of the attachment piece 30a in the 4th attachment part 30 of the keyboard mounting member 15, and this The screw insertion holes 32b of the mounting pieces 32a are made to correspond to the respective screw insertion holes 30b of the fourth mounting portion 30 of the keyboard mounting member 15, and in this state, the fastening screws 31 are connected to the keyboard mounting member 15 from the lower side of the fourth fastening portions 32. The front end portion of the bottom cover member 18 is fixed to the rear end portion of the keyboard mounting member 15 by being screwed into a screw hole in the boss portion 30 c of the fourth mounting portion 30 and tightening.

さらに、底蓋部材18の第5締結部35は、図7、図8および図13に示すように、底蓋部材18の両側にそれぞれほぼ四角形状の凹部35aが設けられ、この凹部35a内にねじ挿入孔35bがそれぞれ設けられた構成になっている。この場合、第1、第2の各ボックス部材16、17の第5取付部33は、図7、図8および図13に示すように、第1第2の各ボックス部材16、17の互いに対向する各側面にその側方(互いに対向する方向)に向けて突出した取付片33aが設けられ、この取付片33aの下面にねじ孔を有するボス部33bが設けられた構成になっている。 Further, as shown in FIGS. 7, 8 and 13, the fifth fastening portion 35 of the bottom cover member 18 is provided with a substantially rectangular recess 35a on both sides of the bottom cover member 18, respectively. The screw insertion holes 35b are respectively provided. In this case, the fifth mounting portions 33 of the first and second box members 16 and 17 are opposed to each other of the first and second box members 16 and 17, as shown in FIGS. Each side surface is provided with a mounting piece 33a protruding toward the side (a direction facing each other), and a boss portion 33b having a screw hole is provided on the lower surface of the mounting piece 33a.

これにより、第5締結部35は、図13に示すように、第1、第2の各ボックス部材16、17の各側面に設けられた取付片33aの各ボス部33bの下側に、第5締結部35の両側部に設けられた凹部35aのねじ挿入孔35bを対応させ、この状態で締結ねじ34を第5締結部35の下側から第1、第2の各ボックス部材16、17の各取付片33aの各ボス部33bに螺入させて締め付けることにより、第1、第2の各ボックス部材16、17の互いに対向する各側部に底蓋部材18の両側部を固定するように構成されている。 As a result, as shown in FIG. 13, the fifth fastening portion 35 is provided below the boss portions 33b of the mounting pieces 33a provided on the side surfaces of the first and second box members 16 and 17, respectively. The screw insertion holes 35b of the recesses 35a provided on both side portions of the 5 fastening portion 35 are made to correspond to each other, and in this state, the fastening screw 34 is connected to the first and second box members 16 and 17 from the lower side of the fifth fastening portion 35. The both side portions of the bottom cover member 18 are fixed to the opposite side portions of the first and second box members 16 and 17 by screwing into the respective boss portions 33b of the mounting pieces 33a. It is configured.

次に、この鍵盤楽器の楽器ケース1を組立てる場合について説明する。
まず、図3に示すように、上部ケース5に各種のスイッチ3、回路基板7、補助回路基板8、およびスピーカ4を組み付ける。この場合には、図3に示すように、上部ケース5の後側中間部分における上面に各種のスイッチ3を取り付けると共に、上部ケース5の後側中間部分における内面に回路基板7と補助回路基板8とを取り付ける。
Next, the case where the instrument case 1 of this keyboard instrument is assembled will be described.
First, as shown in FIG. 3, various switches 3, a circuit board 7, an auxiliary circuit board 8, and a speaker 4 are assembled to the upper case 5. In this case, as shown in FIG. 3, various switches 3 are attached to the upper surface of the rear intermediate part of the upper case 5, and the circuit board 7 and the auxiliary circuit board 8 are provided on the inner surface of the rear intermediate part of the upper case 5. And attach.

また、上部ケース5の後側両側部における内面に、図3に示すように、それぞれスピーカ4を取り付ける。この状態で、各種のスイッチ3を回路基板7に電気的に接続すると共に、各スピーカ4を接続線11で補助回路基板8に電気的に接続するほか、回路基板7にフラットケーブル9の一端部を接続すると共に、補助回路基板8に接続用の配線12の一端部を接続する。 Moreover, as shown in FIG. 3, the speaker 4 is attached to the inner surface in the rear side both sides of the upper case 5, respectively. In this state, the various switches 3 are electrically connected to the circuit board 7, the speakers 4 are electrically connected to the auxiliary circuit board 8 through the connection wires 11, and one end of the flat cable 9 is connected to the circuit board 7. And one end of the connection wiring 12 is connected to the auxiliary circuit board 8.

一方、図6および図7に示す下部ケース6の鍵盤搭載部材15、第1、第2の各ボックス部材16、17、底蓋部材18を用意する。そして、図9に示すように、まず、鍵盤搭載部材15の後端両側部に第1、第2の各ボックス部材16、17をそれぞれ取り付ける。この場合には、図10に示すように、鍵盤搭載部材15の後端両側部にそれぞれ設けられた第2取付部22の下側に、第1、第2の各ボックス部材16、17の前端部にそれぞれ設けられた各第2締結部23を対応させる。 On the other hand, the keyboard mounting member 15, the first and second box members 16, 17 and the bottom cover member 18 of the lower case 6 shown in FIGS. 6 and 7 are prepared. Then, as shown in FIG. 9, first, the first and second box members 16, 17 are attached to both sides of the rear end of the keyboard mounting member 15, respectively. In this case, as shown in FIG. 10, the front ends of the first and second box members 16 and 17 are provided below the second mounting portions 22 provided on both sides of the rear end of the keyboard mounting member 15, respectively. Each 2nd fastening part 23 provided in each part is made to correspond.

この状態で、第2締結部23の3本の樹脂突起23aを鍵盤搭載部材15の第2取付部22の各取付孔22bに下側から挿入して上方に突出させ、この突出した部分の樹脂突起23aを上方から溶融させて第2取付部22の取付片22aに溶着する。このときには、上部ケース5が取り付けられておらず、鍵盤搭載部材15の上方が開放されているので、樹脂突起23aを上方から容易に溶融させることができる。これにより、鍵盤搭載部材15の後部両側に第1、第2の各ボックス部材16、17が固着される。 In this state, the three resin protrusions 23a of the second fastening portion 23 are inserted into the respective mounting holes 22b of the second mounting portion 22 of the keyboard mounting member 15 from the lower side so as to protrude upward, and the resin of this protruding portion The protrusion 23 a is melted from above and welded to the attachment piece 22 a of the second attachment portion 22. At this time, since the upper case 5 is not attached and the upper side of the keyboard mounting member 15 is opened, the resin protrusion 23a can be easily melted from above. Thus, the first and second box members 16 and 17 are fixed to both sides of the rear portion of the keyboard mounting member 15.

そして、鍵盤搭載部材15上に鍵盤2を搭載し、この鍵盤2の回路基板(図示せず)に接続された鍵盤配線2b(図4参照)を鍵盤搭載部材15の後側中間部分に引出しておく。この状態で、図11に示すように、鍵盤搭載部材15と第1、第2の各ボックス部材16、17との両者の上部に上部ケース2を取り付ける。このときには、鍵盤搭載部材15の両側部に設けられた複数の第1締結部20を、上部ケース5の内面に設けられた複数の第1取付ボス部19の下に対応させる。 Then, the keyboard 2 is mounted on the keyboard mounting member 15, and the keyboard wiring 2 b (see FIG. 4) connected to the circuit board (not shown) of the keyboard 2 is pulled out to the rear intermediate portion of the keyboard mounting member 15. deep. In this state, as shown in FIG. 11, the upper case 2 is attached to the upper portions of both the keyboard mounting member 15 and the first and second box members 16 and 17. At this time, the plurality of first fastening portions 20 provided on both side portions of the keyboard mounting member 15 are made to correspond to the plurality of first mounting boss portions 19 provided on the inner surface of the upper case 5.

この状態で、締結ねじ21を第1締結部20内に下側から挿入して、第1締結部20の各ねじ挿入孔20aを通して上部ケース5の第1取付ボス部19に螺入する。これにより、図11に示すように、上部ケース5の下側に鍵盤搭載部材15が取り付けられる。これと同時に、第1、第2の各ボックス部材16、17を上部ケース5の下部に取り付ける。 In this state, the fastening screw 21 is inserted into the first fastening portion 20 from below, and is screwed into the first mounting boss portion 19 of the upper case 5 through each screw insertion hole 20a of the first fastening portion 20. As a result, the keyboard mounting member 15 is attached to the lower side of the upper case 5 as shown in FIG. At the same time, the first and second box members 16 and 17 are attached to the lower portion of the upper case 5.

このときには、図11に示すように、第1、第2の各ボックス部材16、17に設けられた第3締結部26を上部ケース5の後側両側部に設けられた複数の第3取付ボス部24にそれぞれ対応させ、この状態で締結ねじ25を第3締結部26のねじ挿入孔26aに下側から挿入して第3取付ボス部24に螺入する。これにより、上部ケース5の後側両側部の下部に第1、第2の各ボックス部材16、17が取り付けられる。 At this time, as shown in FIG. 11, the third fastening portions 26 provided on the first and second box members 16 and 17 are replaced with a plurality of third mounting bosses provided on both sides of the rear side of the upper case 5. In this state, the fastening screw 25 is inserted into the screw insertion hole 26a of the third fastening portion 26 from below and screwed into the third mounting boss portion 24. As a result, the first and second box members 16 and 17 are attached to the lower portions of the both sides on the rear side of the upper case 5.

そして、鍵盤搭載部材15の後方に底蓋部材18を接近させて配置する。この状態で、上部ケース5の内面に設けられた回路基板7に一端部が接続されたフラットケーブル9と、鍵盤2の回路基板(図示せず)に接続された鍵盤配線2bとを、底蓋部材18のコネクタ36に接続して、上部ケース5の回路基板7と鍵盤2の回路基板とを電気的に接続する(図4参照)。また、上部ケース5の内面に設けられた補助回路基板8に一端部が接続された配線12を底蓋部材18の電源部37に接続する。 Then, the bottom cover member 18 is disposed close to the rear of the keyboard mounting member 15. In this state, the flat cable 9 having one end connected to the circuit board 7 provided on the inner surface of the upper case 5 and the keyboard wiring 2b connected to the circuit board (not shown) of the keyboard 2 are connected to the bottom cover. The circuit board 7 of the upper case 5 and the circuit board of the keyboard 2 are electrically connected to the connector 36 of the member 18 (see FIG. 4). Further, the wiring 12 having one end connected to the auxiliary circuit board 8 provided on the inner surface of the upper case 5 is connected to the power supply unit 37 of the bottom cover member 18.

この後、図4および図5に示すように、底蓋部材18を鍵盤搭載部材15と第1、第2の各ボックス部材16、17に取り付ける。このときには、図12に示すように、まず、底蓋部材18の後端部に設けられたフック部28を上部ケース5の後端下部に設けられた位置決め部27に係合させて、上部ケース5に対する底蓋部材18の取付位置を決め、底蓋部材18の前端部を鍵盤搭載部材15の後端部に取り付ける。 Thereafter, as shown in FIGS. 4 and 5, the bottom cover member 18 is attached to the keyboard mounting member 15 and the first and second box members 16 and 17. At this time, as shown in FIG. 12, first, the hook portion 28 provided at the rear end portion of the bottom cover member 18 is engaged with the positioning portion 27 provided at the lower rear end portion of the upper case 5 to thereby 5 is determined, and the front end portion of the bottom cover member 18 is attached to the rear end portion of the keyboard mounting member 15.

このときには、図12に示すように、底蓋部材18の前端部に設けられた第4締結部32の取付片32aが、鍵盤搭載部材15の後端部に設けられた第4取付部30の下側に対応して配置されるので、締結ねじ31を第4締結部32の下側から鍵盤搭載部材15の第4取付部32におけるボス部32cのねじ孔に螺入させて締め付ける。これにより、底蓋部材18の前端部が鍵盤搭載部材15の後端部に固定される。 At this time, as shown in FIG. 12, the attachment piece 32 a of the fourth fastening portion 32 provided at the front end portion of the bottom lid member 18 is connected to the fourth attachment portion 30 provided at the rear end portion of the keyboard mounting member 15. Since it is arranged corresponding to the lower side, the fastening screw 31 is screwed into the screw hole of the boss portion 32c in the fourth mounting portion 32 of the keyboard mounting member 15 from the lower side of the fourth fastening portion 32 and tightened. As a result, the front end portion of the bottom cover member 18 is fixed to the rear end portion of the keyboard mounting member 15.

また、この底蓋部材18は、図13に示すように、第1、第2の各ボックス部材16、17にも取り付けられる。このときには、フック部28が位置決め部17で位置決めされていることにより、底蓋部材18の第5締結部35が、第1、第2の各ボックス部材16、17の互いに対向する各側面に設けられた第5取付部33の取付片33aの下側に配置され、この底蓋部材18に設けられた第5締結部35の凹部35aのねじ挿入孔35bが、第1、第2の各ボックス部材16、17に設けられた第5取付部33の各取付片33aの各ボス部33bに対応する。 The bottom cover member 18 is also attached to the first and second box members 16 and 17 as shown in FIG. At this time, since the hook portion 28 is positioned by the positioning portion 17, the fifth fastening portion 35 of the bottom cover member 18 is provided on each side surface of the first and second box members 16 and 17 facing each other. The screw insertion hole 35b of the concave portion 35a of the fifth fastening portion 35 provided on the bottom lid member 18 is arranged below the attachment piece 33a of the fifth attachment portion 33 thus formed, and each of the first and second boxes. It corresponds to each boss portion 33b of each attachment piece 33a of the fifth attachment portion 33 provided on the members 16 and 17.

この状態で、図13に示すように、締結ねじ34を第5締結部35の下側から第1、第2の各ボックス部材16、17に設けられた第5取付部33の各取付片33aの各ボス部33bに螺入させて締め付ける。これにより、第1、第2の各ボックス部材16、17の互いに対向する各側部に底蓋部材18の両側部が固定される。 In this state, as shown in FIG. 13, the fastening screws 34 are attached from the lower side of the fifth fastening portion 35 to the attachment pieces 33 a of the fifth attachment portions 33 provided on the first and second box members 16 and 17. And screwed into each boss portion 33b. Thereby, the both side parts of the bottom cover member 18 are fixed to the mutually opposing side parts of the first and second box members 16 and 17.

この結果、鍵盤搭載部材15の後端部に第1、第2の各ボックス部材16、17および底蓋部材18が取り付けられた下部ケース6が構成され、この下部ケース6の上部に上部ケース5が取り付けられて楽器ケース1全体が構成される。このように構成された楽器ケース1では、修理や点検をする場合、底蓋部材18を上記と逆の手順で取り外すことにより、配線などの修理や点検が容易に行える。 As a result, the lower case 6 in which the first and second box members 16 and 17 and the bottom cover member 18 are attached to the rear end portion of the keyboard mounting member 15 is configured, and the upper case 5 is formed above the lower case 6. Is attached to constitute the entire musical instrument case 1. In the musical instrument case 1 configured as described above, when repair or inspection is performed, the bottom cover member 18 is removed in the reverse order to the above, so that repair or inspection of wiring or the like can be easily performed.

このように、この鍵盤楽器のケース構造によれば、楽器ケース1が上部ケース5と下部ケース6とを備え、この下部ケース6が、上部ケース5の前側下部に取り付けられて鍵盤2を搭載する鍵盤搭載部材15と、この鍵盤搭載部材15の後端両側部および上部ケース5の後側両側部の下部にそれぞれ取り付けられる第1、第2の各ボックス部材16、17と、上部ケース5の後側中間部分の下部に位置決めされて鍵盤搭載部材15の後端部および第1、第2の各ボックス部材16、17の互いに対向する各側部に取り付けられる底蓋部材18とを備えているので、配線作業が容易にでき、組立て作業の向上を図ることができる。 As described above, according to the case structure of the keyboard instrument, the instrument case 1 includes the upper case 5 and the lower case 6, and the lower case 6 is attached to the lower front side of the upper case 5 to mount the keyboard 2. A keyboard mounting member 15, first and second box members 16, 17 attached to the lower side of both sides of the keyboard mounting member 15 and the lower side of the upper case 5, respectively, and the rear of the upper case 5 And a bottom cover member 18 that is positioned at the lower portion of the side intermediate portion and is attached to the rear end portion of the keyboard mounting member 15 and the opposite side portions of the first and second box members 16 and 17. The wiring work can be facilitated, and the assembling work can be improved.

すなわち、この鍵盤楽器のケース構造では、下部ケース6の鍵盤搭載部材15に鍵盤2を搭載すると共に、上部ケース5に各種のスイッチ3およびスピーカ4を搭載して、鍵盤搭載部材15を上部ケース5の下部に取り付け、この状態で上部ケース5側のフラットケーブル9や配線12、および鍵盤搭載部材15側の鍵盤配線2bなどの各種の配線を容易に接続することができるので、各種配線の長さを最小限に短くすることができると共に、配線作業が容易にできる。 That is, in this keyboard instrument case structure, the keyboard 2 is mounted on the keyboard mounting member 15 of the lower case 6, and various switches 3 and speakers 4 are mounted on the upper case 5, and the keyboard mounting member 15 is mounted on the upper case 5. In this state, various wirings such as the flat cable 9 and wiring 12 on the upper case 5 side and the keyboard wiring 2b on the keyboard mounting member 15 side can be easily connected. Can be shortened to a minimum and wiring work can be facilitated.

また、この後は、底蓋部材18を上部ケース5に位置決めして鍵盤搭載部材15およびこれに取り付けられた第1、第2の各ボックス部材16、17に取り付けることができる。このため、下部ケース6を4つに分割しても、楽器ケース1全体を確実に且つ強固に組み付けることができるほか、配線作業が容易にできるので、組立て作業の向上を図ることができると共に、底蓋部材18のみを取り外すことにより、修理や点検も容易にできる。 After that, the bottom cover member 18 can be positioned on the upper case 5 and attached to the keyboard mounting member 15 and the first and second box members 16 and 17 attached thereto. For this reason, even if the lower case 6 is divided into four parts, the entire instrument case 1 can be securely and firmly assembled, and the wiring work can be facilitated, so that the assembling work can be improved, By removing only the bottom lid member 18, repair and inspection can be facilitated.

この場合、第1、第2の各ボックス部材16、17は、鍵盤搭載部材15の後端部に設けられた第2取付部22にそれぞれ溶着によって締結される第2締結部26と、上部ケース5の後側両側部に設けられた第3取付ボス部24にそれぞれ締結ねじ25によって締結される第3締結部26とを備えているので、第1、第2の各ボックス部材16、17を鍵盤搭載部材15の後端部と上部ケース5の下部とに確実に且つ強固に取り付けることができる。   In this case, each of the first and second box members 16 and 17 includes a second fastening portion 26 fastened by welding to the second mounting portion 22 provided at the rear end portion of the keyboard mounting member 15, and an upper case. 5 includes a third fastening portion 26 fastened by a fastening screw 25 to the third mounting boss portion 24 provided on both sides of the rear side, so that the first and second box members 16 and 17 are It can be securely and firmly attached to the rear end portion of the keyboard mounting member 15 and the lower portion of the upper case 5.

すなわち、第1、第2の各ボックス部材16、17は、上部ケース5に対して固定される前に、まず、鍵盤搭載部材15の後端部に取り付けることにより、上部ケース5によって鍵盤搭載部材15および第1、第2の各ボックス部材16、17の上側が塞がれることがないので、第1、第2の各ボックス部材16、17を鍵盤搭載部材15の後端部に容易に且つ確実に取り付けることができる。   That is, before the first and second box members 16 and 17 are fixed to the upper case 5, the first and second box members 16 and 17 are first attached to the rear end portion of the keyboard mounting member 15. 15 and the upper sides of the first and second box members 16 and 17 are not blocked, so that the first and second box members 16 and 17 can be easily attached to the rear end portion of the keyboard mounting member 15 and Can be attached securely.

この場合には、第1、第2の各ボックス部材16、17の第2締結部23である3本の樹脂突起23aを鍵盤搭載部材15の第2取付部22の各取付孔22bに下側から挿入して上方に突出させ、この突出した部分を溶融させて第2取付部22の取付片22aに溶着するので、鍵盤搭載部材15の後端部に第1、第2の各ボックス部材16、17を確実に且つ強固に固定することができる。 In this case, the three resin protrusions 23a, which are the second fastening portions 23 of the first and second box members 16 and 17, are placed below the mounting holes 22b of the second mounting portion 22 of the keyboard mounting member 15. Since the protruding portion is melted and welded to the mounting piece 22a of the second mounting portion 22, the first and second box members 16 are attached to the rear end portion of the keyboard mounting member 15. , 17 can be securely and firmly fixed.

また、この第1、第2の各ボックス部材16、17は、その両側部に第3締結部26が設けられているので、鍵盤搭載部材15の後端部に固定された状態で、第3締結部26を上部ケース5の内面に設けられた複数の第3取付ボス部24に対応させ、この状態で締結ねじ25を第3締結部26内に下側から挿入して、第3締結部26のねじ挿入孔26aを通して上部ケース5の第3取付ボス部24に螺入することができ、これにより第1、第2の各ボックス部材16、17を上部ケース5の下部に確実に取り付けることができる。   Further, since the first and second box members 16 and 17 are provided with the third fastening portions 26 on both sides thereof, the third box members 16 and 17 are fixed to the rear end portion of the keyboard mounting member 15 in the third state. The fastening portion 26 is made to correspond to the plurality of third mounting boss portions 24 provided on the inner surface of the upper case 5, and in this state, the fastening screw 25 is inserted into the third fastening portion 26 from the lower side, and the third fastening portion 26 can be screwed into the third mounting boss portion 24 of the upper case 5 through the screw insertion holes 26a, and thereby the first and second box members 16, 17 can be securely attached to the lower portion of the upper case 5. Can do.

また、この鍵盤楽器のケース構造では、底蓋部材18が、上部ケース5の後端部に設けられた位置決め部27に位置決めされるフック部28と、鍵盤搭載部材15の後端部に設けられた第4取付部30に締結ねじ31によって締結される第4締結部32と、第1、第2の各ボックス部材16、17の互いに対向する各側面に設けられた第5取付部33に締結ねじ34によって締結される第5締結部35とを備えているので、配線作業が終了した後に、底蓋部材18を鍵盤搭載部材15、第1、第2の各ボックス部材16、17、および上部ケース5に確実に且つ強固に取り付けることができる。   In the keyboard instrument case structure, the bottom cover member 18 is provided at the hook portion 28 positioned at the positioning portion 27 provided at the rear end portion of the upper case 5 and the rear end portion of the keyboard mounting member 15. Fastened to a fourth fastening portion 32 fastened to the fourth attachment portion 30 by a fastening screw 31 and a fifth attachment portion 33 provided on each side surface of the first and second box members 16 and 17 facing each other. Since the fifth fastening portion 35 fastened by the screw 34 is provided, after the wiring work is finished, the bottom cover member 18 is moved to the keyboard mounting member 15, the first and second box members 16, 17, and the upper portion. It can be securely and firmly attached to the case 5.

この場合には、底蓋部材18を上部ケース5の下部に取り付ける際に、底蓋部材18の後端部に設けられたフック部28の先端部を上部ケース5の位置決め部27に係脱可能に係合させることにより、底蓋部材18の後端部を上部ケース5に対して位置決めすることができると共に、底蓋部材18の前端部を鍵盤搭載部材15の後端部に対して位置規制することができる。 In this case, when the bottom lid member 18 is attached to the lower portion of the upper case 5, the front end portion of the hook portion 28 provided at the rear end portion of the bottom lid member 18 can be engaged with and disengaged from the positioning portion 27 of the upper case 5. , The rear end portion of the bottom cover member 18 can be positioned with respect to the upper case 5 and the position of the front end portion of the bottom cover member 18 with respect to the rear end portion of the keyboard mounting member 15 is restricted. can do.

このため、底蓋部材18の前端部に設けられた第4締結部32を、鍵盤搭載部材15の取付片30aの下側に配置させて、第4締結部32の取付片32aに設けられたねじ挿入孔32bを鍵盤搭載部材15の第4取付部30のねじ挿入孔30bに対応させることができ、この状態で締結ねじ31を第4締結部32の下側から鍵盤搭載部材15のボス部32cのねじ孔に螺入させて締め付けることにより、底蓋部材18の前端部を鍵盤搭載部材15の後端部に確実に且つ強固に固定することができる。 For this reason, the 4th fastening part 32 provided in the front end part of the bottom cover member 18 is arranged under the attachment piece 30a of the keyboard mounting member 15, and is provided in the attachment piece 32a of the 4th fastening part 32. The screw insertion hole 32b can be made to correspond to the screw insertion hole 30b of the fourth mounting portion 30 of the keyboard mounting member 15. In this state, the fastening screw 31 is inserted from the lower side of the fourth fastening portion 32 to the boss portion of the keyboard mounting member 15. The front end portion of the bottom cover member 18 can be securely and firmly fixed to the rear end portion of the keyboard mounting member 15 by being screwed into the screw holes 32c and tightening.

また、この状態で、底蓋部材18の両側部に設けられた第5締結部35が、第1、第2の各ボックス部材16、17の各側面に設けられた第5取付部33の取付片33aの下側に配置されるので、この第5締結部35の両側部に設けられた凹部35aのねじ挿入孔35bを、第1、第2の各ボックス部材16、17に設けられた第5取付部33の各取付片33aの各ボス部33bに対応させることができる。 In this state, the fifth fastening portions 35 provided on both side portions of the bottom cover member 18 are attached to the fifth attachment portions 33 provided on the side surfaces of the first and second box members 16 and 17. Since it is arranged below the piece 33a, the screw insertion holes 35b of the recesses 35a provided on both sides of the fifth fastening portion 35 are provided in the first and second box members 16 and 17, respectively. It can be made to correspond to each boss part 33b of each attachment piece 33a of 5 attachment part 33.

このため、締結ねじ34を第5締結部35の下側から第1、第2の各ボックス部材16、17に設けられた第5取付部33の各取付片33aの各ボス部33bに螺入させて締め付けることにより、第1、第2の各ボックス部材16、17の互いに対向する各側部に底蓋部材18の両側部を確実に且つ強固に固定することができる。これにより、下部ケース6が4つに分割されていても、楽器ケース1を確実に且つ強固に組み立てることができる。 Therefore, the fastening screws 34 are screwed into the boss portions 33b of the attachment pieces 33a of the fifth attachment portions 33 provided on the first and second box members 16 and 17 from the lower side of the fifth fastening portion 35. By tightening and tightening, both side portions of the bottom cover member 18 can be securely and firmly fixed to the side portions of the first and second box members 16 and 17 facing each other. Thereby, even if the lower case 6 is divided into four, the musical instrument case 1 can be reliably and firmly assembled.

また、この鍵盤楽器のケース構造によれば、下部ケース6が、鍵盤搭載部材15と、第1、第2の各ボックス部材16、17と、底蓋部材18との4に分割されているので、図14に示すように、第1、第2の各ボックス部材16、17を、その大きさの異なる第1、第2の各ボックス部材40、41と替えて取り付けることができる。これにより、第1、第2の各ボックス部材16、17、40、41のみを替えるだけで、異なる機種の楽器ケース1を構成することができるので、金型コストを抑えることができ、生産性の高いものを得ることができる。 Further, according to the case structure of this keyboard instrument, the lower case 6 is divided into four parts, that is, a keyboard mounting member 15, first and second box members 16, 17, and a bottom cover member 18. As shown in FIG. 14, the first and second box members 16 and 17 can be attached in place of the first and second box members 40 and 41 having different sizes. As a result, the instrument case 1 of a different model can be configured by changing only the first and second box members 16, 17, 40, and 41, so that the mold cost can be suppressed and the productivity can be reduced. Can be obtained.

この発明を適用した鍵盤楽器のケース構造の一実施形態において鍵盤楽器を示した平面図である。It is the top view which showed the keyboard instrument in one Embodiment of the case structure of the keyboard instrument to which this invention is applied. 図1の鍵盤楽器の側面図である。It is a side view of the keyboard musical instrument of FIG. 図1の楽器ケースにおける上部ケースの内面を示した下面図である。It is the bottom view which showed the inner surface of the upper case in the musical instrument case of FIG. 図1の楽器ケースにおいて上部ケースを取り外した状態の下部ケース側を示した平面図である。It is the top view which showed the lower case side of the state which removed the upper case in the musical instrument case of FIG. 図4において鍵盤や配線を取り外した状態の下部ケースを示した平面図である。It is the top view which showed the lower case of the state which removed the keyboard and wiring in FIG. 図5の下部ケースを、鍵盤搭載部材、第1、第2の各ボックス部材、底蓋部材の4つに分割した状態を示した分解平面図である。FIG. 6 is an exploded plan view showing a state in which the lower case of FIG. 5 is divided into four parts: a keyboard mounting member, first and second box members, and a bottom cover member. 図6を斜め下から見た要部の分解斜視図である。It is the disassembled perspective view of the principal part which looked at FIG. 6 from diagonally downward. 図7の更に要部を示した拡大分解斜視図である。It is the expansion disassembled perspective view which showed the principal part of FIG. 図6の状態で鍵盤搭載部材の後端両側部に第1、第2の各ボックス部材を取り付けた状態を示した平面図である。It is the top view which showed the state which attached each 1st, 2nd box member to the rear-end both sides of a keyboard mounting member in the state of FIG. 図9において鍵盤搭載部材と第1、第2の各ボックス部材との接合状態を示した要部の拡大断面図である。FIG. 10 is an enlarged cross-sectional view of a main part showing a joined state of the keyboard mounting member and the first and second box members in FIG. 9. 図10の鍵盤搭載部材と第1、第2の各ボックス部材との上部に上部ケースを取り付けた状態を示した要部の拡大断面図である。It is an expanded sectional view of the principal part which showed the state which attached the upper case to the upper part of the keyboard mounting member of FIG. 10, and each 1st, 2nd box member. 図11において鍵盤搭載部材と上部ケースとに底蓋部材を位置決めして取り付けた状態を示した要部の拡大断面図である。It is the expanded sectional view of the principal part which showed the state which positioned and attached the bottom cover member to the keyboard mounting member and upper case in FIG. 図12において底蓋部材を第1、第2の各ボックス部材の各側部にも取り付けた状態を示した要部の拡大断面図である。It is the expanded sectional view of the principal part which showed the state which attached the bottom cover member also to each side part of each 1st, 2nd box member in FIG. 図7において大きさの異なる第1、第2の各ボックス部材を交換して取り付ける状態を示した要部の分解斜視図である。It is the disassembled perspective view of the principal part which showed the state which replaced and attached each 1st, 2nd box member from which a magnitude | size differs in FIG.

符号の説明Explanation of symbols

1 楽器ケース
2 鍵盤
2a 鍵
2b 鍵盤配線
3 各種のスイッチ
4 スピーカ
5 上部ケース
5c 鍵盤開口部
6 下部ケース
7 回路基板
8 補助回路基板
9 フラットケーブル
12 配線
15 鍵盤搭載部材
16、17、40、41 第1、第2の各ボックス部材
18 底蓋部材
19 第1取付ボス部
20 第1締結部
21、25、31、34 締結ねじ
22 第2取付部
23 第2締結部
24 第3取付ボス部
26 第3締結部
27 位置決め部
28 フック部
30 第4取付部
32 第4締結部
33 第5取付部
35 第5締結部
DESCRIPTION OF SYMBOLS 1 Musical instrument case 2 Keyboard 2a Key 2b Keyboard wiring 3 Various switches 4 Speaker 5 Upper case 5c Keyboard opening 6 Lower case 7 Circuit board 8 Auxiliary circuit board 9 Flat cable 12 Wiring 15 Keyboard mounting member 16, 17, 40, 41 1st DESCRIPTION OF SYMBOLS 1, 2nd box member 18 Bottom cover member 19 1st attachment boss part 20 1st fastening part 21, 25, 31, 34 Fastening screw 22 2nd attachment part 23 2nd fastening part 24 3rd attachment boss part 26 3 Fastening portion 27 Positioning portion 28 Hook portion 30 4th mounting portion 32 4th fastening portion 33 5th mounting portion 35 5th fastening portion

Claims (2)

鍵盤を上方に露出させる鍵盤開口部が前側に設けられ、その後側中間部分の上面に各種のスイッチが設けられ、且つ後側両側部の内面にスピーカが設けられる上部ケースと、前記鍵盤が前側に設けられて前記上部ケースの下部に取り付けられる下部ケースとを備えた鍵盤楽器のケース構造において、
前記下部ケースは、前記上部ケースの前側下部に取り付けられて前記鍵盤を搭載する鍵盤搭載部材と、この鍵盤搭載部材の後端両側部および前記上部ケースの後側両側部の下部にそれぞれ取り付けられる第1、第2の各ボックス部材と、前記上部ケースの後側中間部分の下部に位置決めされて前記鍵盤搭載部材の後端中間部および前記第1、第2の各ボックス部材の互いに対向する各側部に取り付けられる底蓋部材とを備え
前記第1、第2の各ボックス部材は、前記鍵盤搭載部材の後端両側部に設けられた第1取付部にそれぞれ溶着によって締結される第1締結部と、前記上部ケースの後側両側部に設けられた第2取付部にそれぞれねじ部材によって締結される第2締結部とを備えていることを特徴とする鍵盤楽器のケース構造。
A keyboard opening that exposes the keyboard upward is provided on the front side, various switches are provided on the upper surface of the rear intermediate part, and speakers are provided on the inner surfaces of the rear side parts, and the keyboard is on the front side In a keyboard instrument case structure comprising a lower case provided and attached to the lower part of the upper case,
The lower case is attached to a front lower portion of the upper case and mounted on the keyboard mounting member for mounting the keyboard, and on both sides of a rear end of the keyboard mounting member and lower portions of both sides of the rear side of the upper case. 1. Each of the second box members and the opposite sides of the keyboard mounting member and the first and second box members positioned at the lower portion of the rear intermediate portion of the upper case and the keyboard mounting member. A bottom lid member attached to the part ,
Each of the first and second box members includes a first fastening portion fastened by welding to a first mounting portion provided on both sides of a rear end of the keyboard mounting member, and both rear side portions of the upper case. A keyboard instrument case structure comprising: a second fastening portion fastened by a screw member to a second mounting portion provided on the keyboard.
前記底蓋部材は、前記上部ケースの後端中間部に設けられた位置決め部に位置決めされるフック部と、前記鍵盤搭載部材の後端中間部に設けられた第3取付部にねじ部材によって締結される第3締結部と、前記第1、第2の各ボックス部材の互いに対向する各側面に設けられた第4取付部にねじ部材によって締結される第4締結部とを備えていることを特徴とする請求項1に記載の鍵盤楽器のケース構造。 The bottom cover member is fastened by a screw member to a hook portion positioned at a positioning portion provided at a middle portion of the rear end of the upper case and a third mounting portion provided at a middle portion of the keyboard mounting member. And a fourth fastening portion fastened by a screw member to a fourth mounting portion provided on each side surface of the first and second box members facing each other. 2. The case structure of a keyboard instrument according to claim 1 , wherein
JP2008211829A 2008-08-20 2008-08-20 Keyboard instrument case structure Active JP5477760B2 (en)

Priority Applications (1)

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